package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WeChatProperties weChatProperties;

    private static final String WX_LOGIN = "https://api.weixin.qq.com/sns/jscode2session";

    @Override
    public User login(UserLoginDTO dto) {
        HashMap paramMap = new HashMap();
        paramMap.put("appid", weChatProperties.getAppid());
        paramMap.put("secret", weChatProperties.getSecret());
        paramMap.put("js_code", dto.getCode());
        paramMap.put("grant_type", "authorization_code");

        String string = HttpClientUtil.doGet(WX_LOGIN, paramMap);
        JSONObject jsonObject = JSON.parseObject(string);
        String openid = (String) jsonObject.get("openid");


        User user = userMapper.getUserByOpenId(openid);

        if (user == null) {
            user = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.addUser(user);
        }

        return user;
    }
}
